Material: 100% Food Grade Silicone.Suitable for age 2 months - 5 years.Easy to use,hold and clean.These are the perfect transitional toothbrushes to the real ones for your baby.The silicone bristles are 360° design and ultra-soft to massage and soothe your baby's gums.Don't worry they may come off ,they are strong and safe enough.The slider is removable to protect baby from choking hazard. The handle is soft and skin-friendly.